Imaging Algorithm of Missile-Borne MMW SAR For Ground Moving Target

Author

Xie, Wenchong ; Wang, Yongliang

Author_Institution

Wuhan Radar Acad., Wuhan

fYear

2007

fDate

17-20 April 2007

Firstpage

552

Lastpage

557

Abstract

In this paper, firstly some main problems including the imaging resolution and choice of pulse repetition frequency (PRF) are discussed according to the imaging characteristics of missile-borne millimeter wave (MMW) synthetic aperture radar (SAR) for ground target. Secondly a new scheme of motion compensation which consists of range alignment, phase adjustment and compensation for the movement with non-uniform velocity is presented. Thirdly image reconstruction algorithm using superresolution spectrum estimation based on linear spectrum extrapolation technique is given. Finally the effect of maneuvering targets´ 3-dimensionaI (3D) rotation on the imaging quality of missile-borne MMW SAR is analyzed. The effectiveness and efficiency of utilizing the proposed imaging method and the effect of 3-D rotation are demonstrated by means of simulation results.

Keywords

image reconstruction; image resolution; millimetre wave imaging; missile guidance; synthetic aperture radar; ground moving target; image reconstruction; imaging algorithm; imaging resolution; linear spectrum extrapolation; missile-borne MMW SAR; missile-borne millimeter wave; motion compensation; phase adjustment; pulse repetition frequency; superresolution spectrum estimation; synthetic aperture radar; Extrapolation; Frequency; Image analysis; Image reconstruction; Image resolution; Millimeter wave radar; Millimeter wave technology; Motion compensation; Spectral analysis; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2007 IEEE

Conference_Location

Boston, MA

ISSN

1097-5659

Print_ISBN

1-4244-0284-0

Electronic_ISBN

1097-5659

Type

conf

DOI

10.1109/RADAR.2007.374278

Filename

4250372